Chapter 20. Vocab Flashcards
Highlands
a high elevation area on the Moon that reflects light and appears bright on the Moon
The Moon passes through Earth’s shadow during a ________ eclipse.
Lunar
During a lunar eclipse, this is the darker of the two parts of Earth’s shadow.
Umbra
This occurs when a shadow makes the Sun or the Moon seem to grow dark.
Eclipse
At this time the area of sunlight is at a maximum in one hemisphere and a minimum in the other hemisphere.
Solstice
In astronomy, this is the motion of one object around another.
Revolution
During a lunar eclipse, this is the spreading cone of lighter shadow around the umbra.
Penumbra
Earth rotates around this imaginary line running through its center.
Axis
At this time, sunlight shines equally on the northern and southern hemispheres.
Equinox
The patterns of temperature changes and other weather trends over the course of a year.
Seasons
Mare
a flat area on the Moon that looks dark and reflects little light
What causes day and night on earth
The earths rotation on its axis making half
of earth day and half night.
If it was noon where you are then what time is it on the direct opposite side of earth?
Midnight (flips 12 hours)
How long does it take for earth to orbit the sun?
365 days
How long does it take earth to spin once on its axis?
24 hours